This document discusses how to choose a good research topic or problem. It explains that a research topic should introduce the importance of the topic and reflect hard work. Good research topics are clearly stated, can be completed on time and with available resources, and generate additional research questions. A topic should not be too broad or narrow. Examples of bad topics include those that are too local, recent, or can be easily answered with brief research. The document provides examples of good and bad research questions and lists common environmental science topics.